In vitro biomechanical comparison of the strength of ...

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Title In vitro biomechanical comparison of the strength of the linea alba of the llama, using two suture patterns
Author(s) L. van Hoogmoed, J. R. Snyder, S. M. Stover, C. Drake, K. Taylor, T. A. Harmon, Laurie A. McDuffee
Journal American Journal of Veterinary Research
Date 1996
Volume 57
Issue 6
Start page 938
End page 942
Abstract Two incisions in the linea alba of 12 llamas were closed with a simple continuous or inverted cruciate pattern, and tissue was harvested after 10 days. In 6 llamas, the simple continuous line was intact; the inverted cruciate specimens contained 6 sutures. In 6 llamas, 1 knot was excised in the simple continuous pattern to simulate a failed line; the cruciate pattern contained 5 knots. Tissue sections were taken from cranial, between, and caudal to the linea alba incisions to compare fascial thickness. The sutured specimens were mounted in a mechanical testing system and tested to failure. A mixed-model ANOVA was used to evaluate the effects of suture pattern and incisional position on mechanical properties. Significant differences were not found between suture patterns or between location for yield force, failure force, or yield strain, whereas failure strain was lower for the intact simple continuous pattern than the inverted cruciate pattern. From histomorphometric analysis, the caudal tissue specimens were significantly thinner than the middle tissue specimen cranial to the umbilicus..

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